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Optical Burst Switching (OBS) is a type of switching technology capable of harnessing the Wavelength Division Multiplexing (WDM) capability by aggregating different client packets into larger packets known as bursts. OBS is a promising candidate for near-future all-optical networks. However, large burst loss at the core node due to contention is a key issue and it is caused by the buffer-less nature of OBS architecture. This paper focuses on scheduling as a means to reduce contention and improve the overall network performance in terms of loss and throughput. Two important design criteria for scheduling algorithms are speed and link utilization.
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